Question

Match the heat of combustion with the appropriate diene.

Dienes Heats of combustion

(1) Penta-1,2-diene (P) 761.6 kcal/mol

(2) Penta-1,3-diene (Q) 768.9 kcal/mol

(3) Penta-1,4-diene (R) 777.1 kcal/mol

• A. 1–P, 2–Q, 3–R
• B. 1-Q, 2–P, 3–R
• C. 1–R, 2–P, 3–Q
• D. 1–R, 2–Q, 3–P

Answer 1

Answer: (C)

1–R, 2–P, 3–Q

Answer 2

Heat of combustion µ$\frac { 1 } { \text { stability of alkene } }$